添加析构函数

RateSeveral.cpp

@@ -12,6 +12,10 @@ RateSeveral::RateSeveral(QObject *parent) :
     connect(&timer, SIGNAL(timeout()), this, SLOT(onTimerTimeout()));
 }
 
+RateSeveral::~RateSeveral() {
+    timer.stop();
+}
+
 void RateSeveral::setTimerInterval(qint32 second) {
     timer.start(second * 1000);
 }
@@ -44,7 +48,6 @@ void RateSeveral::record(quint32 val) {
     recordList.last().second.fetchAndAddAcquire(val);
 }
 
-
 void RateSeveral::onTimerTimeout() {
     intervalLock.lockForRead();
     auto interval = vInterval;